It was just released today that Intel's market share fell to AMD in the fourth quarter of 2005. From the article: "Sales of Intel-based desktop PCs fell 22.3 percent during the fourth quarter, according to Current Analysis. As a result, sales of AMD-based desktops took the lead during the pivotal fourth-quarter holiday shopping season. AMD chips were found in 52.5 percent of desktop PCs sold in U.S. retail stores during that period.